Ventilating sash-lock.



J. W. WATTS.

VENTILATING SASH LOCK.

APPLICATION FILED NOV. 24 1913.

1,092,234, I Patented Apr. 7, 1914.

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L/6/7 ATTORNEY JOHN W. WATTS, OF PADUOAH, KENTUCKY.

VENTILATING- SASI-I-LOGK.

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Specification of Letters Patent.

Application filed November 24, 1913.

Patented Apr. 7, rate.

Serial No. 802,765.

To all whom it may concern Be it known that I, JOHN W. VVATTs, a citizenof the United States, residing at Paducah, in the county of McCrackenand State of Kentucky, have invented a new and useful VentilatingSash-Lock, of which the following is a specification.

The invention relates to improvements in sash looks.

The object of the present invention is to improve the construction ofsash locks, and to provide a simple, inexpensive and etficient sash lockof strong and durable construc tion, adapted to securely fasten theupper and lower sashes of a window in either a closed or open position,and capable of effectually preventing the sashes from beingsurreptitiously raised or lowered from the exterior of the window by anordinary instrument.

With these and other objects in view, the invention consists in theconstruction and novel combination of parts hereinafter fully described,illustrated in the accompanying drawing, and pointed out in the claimshereto appended; it being understood that various changes in the form,proportion, size and minor details of construction, within the scope ofthe claims, may be resorted to without departing from the spirit orsacrificing any of the advantages of the invention.

In the drawing: Figure 1 is a horizontal sectional view of a portion ofa window provided with a ventilating sash lock, con structed inaccordance with this invention, the sashes being locked. Fig. 2 is asimilar view, the sashes being unlocked. Fig. 3 is an elevation partlyin section, showing a portion of the window and the sash lock. Fig. 4 isa longitudinal sectional view of the sash lock. Fig. 5 is a transversesectional view of the same.

Like numerals of reference designate corresponding parts in all thefigures of the drawing.

In the accompanying drawing in which is illustrated the preferredembodiment of the invention, the ventilating sash lock comprises in itsconstruction a casing 1, a longitudinally slidable bolt 2 and alaterally movable pivoted bolt 3.

The lock may be constructed of any suitable material, and the casing iscomposed of a top and side and end walls, the bottom being open and thecasing being provided thereat with attaching flanges 4E and 5, securedby screws or other suitable fastening devices to the upper edge of thelower sash adjacent to one side of the window frame 6. The casing, whichis substantially oblong, is provided in its end walls with alinedopenings 7 forming guides for the longitudinally slidable bolt 2, whichis adapted to be moved outwardly to engage it with'any one of a seriesof straight horizontal sockets 8, formed in the adjacent side of thewindow frame and preferably lined with metal, as shown, but any otherform of socket may, of course, be employed. The bolt 2, which ispreferably round, as shown, is shaped at its inner or rear end to form agrip or handle 9, and it is-flattened at an intermediate point at 10 andprovided thereat with a perforation 11 for the reception of a screw 12,engaging a threaded perforation 13 in the bolt 3 and pivotallyconnecting the same to the longitudinally slidable bolt 2. Any othersuitable pivot may be employed, and the perforation 13 is located at apoint intermediate of the ends of the pivoted bolt 3, which has astraight inner portion and a curved outer portion 14., adapted to beprojected outwardly through a lateral opening 15 in the outer side ofthe casing 1 to engage it with any one of a plurality of straighthorizontally disposed sockets 16, formed in the adjacent side of theupper sash 17 and preferably metal lined, as shown. When the bolt 2 ismoved outwardly it carries with it the pivoted bolt 3, which issimultaneously projected from the outer side of the casing. Thisoperation partially oscillates the bolt 3 and swings its inner straightportion from a position in alinement with the bolt 2, as shown in Fig. 2of the drawing, to a position at an angle to the same, as illustrated inFig. 1 of the drawing.

The bolts are locked in their extended engaging position by asubstantially L-shaped spring 18, secured at one end to the inner faceof one of the inner side walls of the casing by a rivet 19, or othersuitable fastening device and consisting of an inner 1ongi tudinallydisposed portion 20, an outer transversely disposed handle portion 21and an intermediate portion 22, arranged at substantially right anglesto the inner portion and occupying approximately a diagonal positionwhen the spring is in its normal position. The inner longitudinallydisposed portion 20 is arranged at an acute angle to the inner side ofthe casing, which is provided with a slot 23 through which passes theouter handle portion of the spring. The spring forms an abutment and isyieldable in one direction, viz., laterally of the sash lock to permitthe inner end of the pivoted bolt to slide readily past it in theoutward or looking movement of the bolts, and the intermediate portionof the spring is adapted to engage with the inner end of the pivot edbolt 3 and form a stop for locking the bolts against inward movement ina direction longitudinally of the sash.

The spring is automatic in its operation and engages the inner or rearend of the laterally projecting bolt when the bolts are moved intoengagement with a socket of the window frame and the upper sash. When itis desired to unlock the sashes, it is necessary to grasp the handleportion of the spring with one hand, pull the spring outward andsimultaneously grasp the rear end of the bolt and slide the latterinwardly or rearwardly. The substantially smooth character of the innergrip or handle portion 9 of the bolt and the operation of the springeffectually prevent the sash look from being operated by a stick orother instrument when either the lower sash is raised, or'the upper sashis lowered a suflicient distance to permit the arm of a person to bepassed through the window.

The sash lock, which presents a neat appearance, is adapted to securelyfasten the upper and lower sashes at any adjustment and when the boltsare withdrawn from engagement with the sashes, they will remain in aretracted position and permit free movement of the sashes, the springoperating to prevent any accidental movement of the bolts. Theventilating sash lock is designed to be constructed right and left so asto operate at the right hand side and the left hand side of a window.

What is claimed is 1. A sash lock of the class described including alongitudinally slidable bolt, a laterally movable bolt pivotallyconnected to the longitudinally slidable bolt at a point intermediate ofthe ends thereof and carried by the same, means for guiding the bolts intheir inward and outward movements, and

means arranged in the path of and adapted to engage the inner end of thelaterally movable bolt'for locking the bolts in their engaged positions.

2. A sash lock of the class described including a longitudinallyslidable bolt, a laterally movable bolt pivotally connected to thelongitudinally slidable bolt at a point intermediate of the ends thereofand carried by the same, means for guiding the bolts in their inward andoutward movements, and an abutment arranged in the path of the in nerend of the pivoted bolt and yieldable in one direction to permit anoutward movement of the said bolts and forming a stop for engaging theinner end of the said pivoted bolt for maintaining the bolts in theirengaging positions.

3. A sash lockof the class described including a longitudinally slidablebolt, a laterally movable bolt pivotally connected to the longitudinallyslidable bolt at a point intermediate of the ends thereof and carried bythe same, means for guiding the bolts in their inward and outwardmovements, and a spring secured at one end and consisting of alongitudinally disposed portion arranged at an angle to the slidablebolt and an outwardly extending portion disposed in substantially atransverse position with relation to the said slidable bolt and arrangedto engage with the inner end of the pivoted bolt for locking the boltsin their engaging positions.

A. A sash look of the class described including a casing provided withoppositely alined openings and having a lateral opening, a slidable boltguided in the alined openings, a pivoted bolt connected with and carriedby the slidable bolt and arranged to be projected through the lateralopening of the casing, and a spring secured within the casing and havinga portion arranged in the path of and adapted to engage with the innerend of the pivotedbolt, said spring hav ing a free handle portionextending through the casing.

5. A sash lock of the class described including a slidable bolt, anoscillatory bolt pivoted at a point intermediate of its ends to theslidable bolt at a point between the ends thereof, the inner portion ofthe oscillatory bolt being in substantial alinement with the slidablebolt when the bolts are retracted and being carried to a position at anangle to the slidable bolt when the bolts are moved outwardly to theirengaging position, and means arranged in the path of the innerprojecting portion of the pivoted bolt for locking the bolts in theirengaging positions.

6. A sash lock of the class described including a slidable bolt, anoscillatory bolt having a curved outer portion and a substantiallystraight inner portion, said oscillatory bolt being pivoted at a pointintermediate of its ends to the slidable bolt at a point be tween theends thereof, the inner portion of the oscillatory bolt being insubstantial alinement with the slidable bolt when at the limit of itsinward movement and being swung to a position at an angle to the slidasmy own, I have hereto affixed my signaable bolt when the bolts, arecarried to tleir ture in the presence of two witnesses. engaginositions, an means arrange in a the pat}? 3f the inner portion of theoscil- JOHN WATTS 5 latory bolt for engaging with the same to Witnesses:

look the bolts in their engaging positions. GUY NANoE,-

In testimony that I claim the foregoing BUTLER H. MARLONE.

Copies of this patent may be obtained for fi ve cents each, byaddressing the Commissioner of Patents, Washington, D. G.

